Análisis del cambio de uso de suelo mediante percepción remota en la microcuenca del río luis, provincia de El Oro.

Abstract

In the present study, an analysis was carried out to evaluate land use change in the micro-watershed of the Luis river, El Oro province, over a period of time between 2000, 2010 and 2020. Through the process of supervised classification of Landsat remote sensing images, precise alterations were identified and, with the NDVI and NDWI spectral indices, the areas with greater vegetation and humidity were found. Five land uses were identified within the micro-watershed: water body, forest, shrub and herbaceous vegetation, agricultural land and anthropic zone. The advance of the agricultural frontier was noted, while for the forested areas a decrease was observed during the study periods. The QGIS platform was used to obtain data on the aforementioned elements. This study showed a notable influence on the change in land use due to agricultural and livestock activities. For the year 2010 there was a notorious advance of agricultural land and a minimization of forest cover, while the NDVI and NDWI values showed that when there is healthy vegetation there is also the presence of moisture. From the study, it can be established that the reduction of forest cover due to land use modification has negative repercussions for the integrity of the micro-watershed.